Excel 2016 odd behavior

Windows 10 pro 10240
I have a spreadsheet called "general.xlsm" which contains personal data such as addresses, ledger, etc. Today when I opened it the title bar labeled it "general.xlsm:2." Additionally, the quick access toolbar fails to pop up labels for the icons. Something is wrong. Now, I placed the icons on the qa toolbar and sort of know which is which. But a mistake could be unfortunate.
How can I get this back on track?
tcebob

Update: I tried Office Repair, both quick and slow. neither fixed the problem.